Kismet’s a thing — especially in theater. The first immersive performance that local playwright Jeffrey Neuman ever attended was “Wild Party” in 2016. The slinky, fun retrofitting of the Broadway musical set in the Jazz Age was produced by the Denver Center’s Off-Center and was directed by Amanda Berg Wilson, the artistic director of Boulder’s inventive company, the Catamounts. This past weekend, “The Last Night of Red Barker” — Neuman’s third immersive storytelling collaboration with Wilson and the Catamounts — opened at (and around) Westminster Grange Hall.